Horseshoe.



C. A. CAMPBELL.

HORSESHOE.

APPLICATION FILED APR. 20. 1915.

Lzmfiw. Patented Dec. 5, 1916.

CHARLES A. CAMPBELL, 0F PHILADELPHIA, PENNSYLVANlIA.

HORSESHOE.

Original application filed March 12, 1915, Serial No. 13,905.

Specification of Letters Patent.

Patented Dec. 5, 19145.

Divided and this application filed April 20, 1915.

Serial No. 22,698;

To all whom it may concern:

Be it known that I, CHARLES A. CAMPBELL, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain Improvements in Horseshoes, (being a division of my application for patent filed March 12, 1915, Serial No. 13,905, 1915,) of which the following is a specification.

My invention relates to metal horseshoes of the ready-made type either by drop forging, casting or by successive casting and forging operations; and. one object of my invention is to provide a horseshoe with a lower or wearing face of a character that will decrease the tendency of the shoe to slip or slide upon paved road surfaces and, additionally, will furnish the shoe with an improved bearing surface.

A further object of my invention is to provide a shoe with means to prevent slipping, and so constructed and arranged as to aiford-auxiliary or additional wearing surfaces at regions of the shoe which are subjected to the most attrition, more particularly due to peculiarities in the gait or the manner in which the horse places his hoof upon the ground.

In my improved horseshoe, I provide a toe calk comprising a continuous annular frame around a recess adapted to receive and hold grit from the road, thus affording a frictional bearing surface within said frame. I find in practice that there is a great tendency for some horses to wear the shoe at the side of the front of the call: which is given a rolling scraping movement by the action of the horse.

I therefore provide said calk with a lateral extension upon the side which is subjected to the rolling action so as to not only afford a wearing surface approximately double the width of the narrower walls of the frame, but also project said lateral surface laterally beyond the normal contour of the shoe so as to bring such lateral wearing surface in longitudinal alinement with a portion of the calks of that side; the opposite heel of the shoe being also provided with calks, but the latter being out of longitudinal alinement with the edge of the front calk upon that side so as to give the shoe a tendency to roll upon the side opposite the side which is caused to roll by the action of the horse; thus providing a construction in which the tendency to wear more upon one side than another is compensated for.

in my improved shoe, 1 provide the heel portions with a plurality of calks; the heel portion on the same side as the lateral projection of the toe calk having three calks which are somewhat heavier than the calks on the opposite heel portion which are only two in number.

These and other features'of my invention are more fully described hereinafter, reference being had to the accompanying drawings, in which:

Figure 1, is a plan view of the lower bearing face of my improved horseshoe; Fig. 2. is a sectional view on the line 22, Fig. 1; the shoe being shown in position of use, and Fig. 3, is a front elevation of the shoe in t position of use.

My improved horseshoe, indicated at 1, is provided at its too 2 with a hollow calk which extends in the form of a continuous wall or frame around a recess 3, and comprises transverse depending walls 4, l at the forward outer portion of the shoe and the inner portion thereof, respectively; such walls conforming to the curvature of the shoe at its toe portion and having their outer surfaces slightly beveled or converging inwardly so that the extreme width of the pocket formed by these walls longitudinally of the shoe at their bearing surface is less than the toe portion of the shoe with which they are integrally connected. The transverse depending walls 4:, 4, are joined by end walls 5, 5 the wall 5 being substantially parallel with the longitudinal or medial axis of the shoe, while the wall 5 is thickened outwardly and projects laterally, as clearly indicated in the drawings, for the purpose of providing additional weight and wearing surface. This thickened portion of the shoe is applied to the hoof lying on the outside or to the right of shoes for the right feet, and to the outside or left of shoes for the left feet, and is designed to add weight to the shoe and for the purpose of preventing the hoof rolling on that side; such construction correcting any tendency of the horse to walk unevenly and relieving the muscles that are strained when the shoe is worn on one side only. In addition, such wall adds extra wearing material to the side portion of the call; without, however, affecting the value and utility 1 of the grit retaining pocket formed in such calk. The inner surface of the several walls forming this toe pocket may be slightly beveled; such beveling adding to the effective use of the structure by giving the walls a comparatively sharp contacting surface for engagement with the ground and being also desirable for ease in manufacturing the shoe, since the latter is a drop forging.

The lateral extending portion of the toe calk which extends outside the wall of the shoe adjacent the toe of the same need not extend to the surface of the shoe contacting with the hoof, but may stop short of the same, as clearly illustrated in Fig. 3; a construction that facilitates manufacture of the shoes .in dies.

At the termination of the quarters 6, I provide a plurality of calks which may also serve as grit retaining means; such calks being indicated at 8 and 8, and set dlagonally with respect to the longitudmal ax s of the shoe. This diagonal arrangement is desirable, since it avoids danger of the calks catching in the joints of paving.

In my present arrangement, with a view of overcoming the tendency of the horse to roll at the side of the shoe, that side Which is provided with the laterally extending toe calk is provided at the heel portion with three calks 8 of a substantially identical character; a portion of the same being in line with said lateral projection. The opposite quarter at the heel portion is provided with a lesser number of calks 8, preferably lighter, out of line with the toe calk, and

. providing a construction that gives the shoe a tendency to roll upon that side.

Theadditional calk 8 on the braneh or quarter of the shoe adds weight on one s1de of the shoe in connection with the increased weight of the thickened wall 5* of the toe calk, and the omission of the calk on the opposite branch or quarter of the shoe lightens such side so that the tendency to roll on the one side by the action of the horse is counteracted and compensated for by a construction which would permit slight rolling action upon the side opposite that affected by rolling due to the action of the horse; the net result of which will be to cause the shoe to wear evenly.

While I have referred to the use of a lateral projection of the toe calk on the outside or right of shoes for the right feet and to the outside or left of shoes for the left feet, it will be understood, of course, that said lateral projection of the toe calk may be employed upon the inside or left of the right feet, or the inside or right of the left feet.

In lieu of the form of toe calks illustrated in Fig. 1 I may provide the heel portions of the shoe with calks having pockets, of a character substantially like that shown at the toe portion of the shoe; such heel pockets having side walls which follow the curvature of the branch or quarter at the heel portion of the shoe, which side walls are oined by diagonally positioned walls which lie substantially at the same angle with reference to the longitudinal axis of the shoe as the angle of the calks S and S shown in Fig. 1'.

The improved shoe made in accordance with my present invention has the pocketed toe calk and the heel calks in the same plane, providing an even bearing surface with unobstructed branches or quarters intermediate the toe and heel calks, and while providing nail holes 9 of proper character and position whereby the shoe may be secured to the hoof, fullering of the shoe is omitted so as to increase the body of the quarters and avoid danger of changing or distorting the shape of the nail holes should it be necessary to bend or otherwise shape the shoe to fit a particular hoof; there being sufiicient body between said nail holes and the outside of the shoe to avoid such condition.

I claim:

1. In a horseshoe, the combination with a toe calk forming a continuous annular frame around a recess adapted to receive and hold grit from the road, and having an auxiliary wearing surface of said frame extending laterally upon one side thereof projecting laterally beyond the normal contour of the shoe; of a calk upon the heel of the shoe, upon the side opposite said lateral projection; said heel calk being out of longitudinal alinement with the edge of the toe calk upon that side; whereby the shoe has a tendency to roll upon that side of the toe, opposite to the side, which is caused to roll, by the action of the horse, so that the tendency to maximum wear upon one side of the toe of the shoe, by the rolling action of the horse, is counteracted both by the construction and arrangement of the toe calk and by the construction and arrangement of the heel calk in cooperative relation therewith.

2. In a horseshoe, the combination with a toe calk forming a continuous annular frame around a recess adapted to receive and hold grit from the road, and having an auxiliary wearing surface of said frame extending laterally upon one side thereof projecting laterally beyond the normal contour of the shoe; of a calk upon the heel of the shoe, at that side, in longitudinal alinement with said lateral wearing surface; and a calk upon the opposite heel of the shoe; the latter calk being out of longitudinal alinement with the edge of the front calk upon that side; whereby the shoe has a tendency to roll upon that side of the toe opposite to the side which is caused to roll by the action of the horse, so that the tendency to maximum wear upon one side of the toe of the shoe, by the rolling action of the horse, is

counteracted both by the construction and laterally upon one side thereof so as to afford 10 arrangement of the toe call: and by the cona Wearing surface, at that side, approxistruction and arrangement of the heel calks mately double the Width of the narrower in cooperative relation therewith. portions of the frame and projecting lat- 3. In a horseshoe, the combination With a orally beyond the normal contour of the toe calk forming a continuous annular frame shoe, of heel oalks carried by the quarters of 15 around a recess adapted to receive and hold said shoe; the calks on one side being out of grit from the road, and having an auxiliary alinement With the toe calk of said shoe. Wearing surface of said frame extending CHARLES A. CAMPBELL.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D 0. 

